<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
     "http://www.w3.org/TR/html4/transitional.dtd">
<html>
<head>
  <meta HTTP-EQUIV=CONTENT-TYPE CONTENT="text/html; charset=utf-8">
  <title>The Increase Formula: an Example</title>
</head>
<body text="#5F5F5F" bgcolor="#FFFFFF" link="#000080" vlink="#0000CC" alink="#000080">
<center>
<a href="text0.html">First page</a> <a href="text25.html">Back</a> <a href="text27.html">Continue</a> <a href="text49.html">Last page</a> <a href="udt-2009.html">Overview</a> <a href="img26.html">Graphics</a></center><br>
<h1 style="direction:ltr;"><b><font color="#808000">The Increase Formula: an Example</b></font></h1>
<br>
<h3>Notes:</h3>
<p style="direction:ltr;"><font color="#000000">This is an example over a 10Gb/s link, and the packet size is 1500 bytes.</font></p>
<p style="direction:ltr;"><font color="#000000"></font></p>
<p style="direction:ltr;"><font color="#000000">A UDT flow will start at 0 and increase its sending rate by 10 packets per SYN before it reaches 9Gb/s. After that, the increase parameter becomes 1 packet per SYN, and 0.1 packet per SYN, and so on.</font></p>
<p style="direction:ltr;"><font color="#000000"></font></p>
<p style="direction:ltr;"><font color="#000000">In fact, UDT can scale up to 90% of the  bandwidth at approximately a constant time, which is 750 SYN, or 7.5 seconds. This makes UDT very scalable to the increase of network bandwidth and delay.</font></p>
<p style="direction:ltr;"><font color="#000000"></font></p>
</body>
</html>